Power transmission



Oct. 31, 1939. T. IAVELLI POWER TRANSMISSION Filed NOV. 27, 1936 4Sheets-Sheet 1 n A56 ll m7 Z Z z l I INYENTOR. 72770 JayeZZz.

Oct. 31, 1939. 'r. IAVELLI POWER TRANSMISSION Filed Nov. 27, 1936 4Sheets-Sheet 2 nyvmon. 72130 .ZdVZZZ. 2 4,% w ATTORNEYS.

Oct. 31, 1939. V L 2,177,889

POWER TRANSMISSION Filed Nov. 27, 1936 4 Sheets-Sheet 3 4 m A. w m!Ml... l: \R%

INVENTOR. 7222a jareZ/z. A /0 l ,0 @Z2 M ATTORNEYS.

Oct. 31, 1939. T. IAVELLI POWER TRANSMISSION Filed Nov. 27, 1936 4Sheets-Sheet 4 IN} 'ENTOR. 72270 jail 6X22.

Patented Oct. 31, 1939 UNITED STATES POWER TRANSMISSION Teno Iavelli,Detroit, Mich., assignor to Chrysler Corporation, Highland Park, Mich.,a corporation of Delaware Application November 27, 1936, Serial No.112,902

43 Claims.

This invention relates to power transmission mechanismand refers moreparticularly to improvements in power transmission systems especiallyadapted for use in connection with motor '5 vehicles, although notnecessarily limited thereto.

My invention, in certain more limited aspects, provides improvements inthe drive and control for power transmission systems having epicyclic orplanetary gear trains adapted to provide the desired speed ratiosbetween the vehicle engine and driving ground wheels.

One object of my invention resides in the provision of an improvedselector and actuating V mechanism for obtaining the several speedratios provided by the speed changing mechanism, the

latter being preferably of the planetary gear type although notnecessarily limited thereto in the broader aspects of my invention.

A further objectof my invention resides in the provision of improvedcontrols and actuating mechanism for selecting and manipulating thevarious gear trains of a transmission, particularly a planetary type oftransmission, whereby means is provided responsive in an improved mannerto manual control for automatically and quickly bringing about acomplete cycle of gear ratio change.

In carrying out the above objects of my invention, I preferablyprovide acommon actuator or prime mover preferably of the fluid pressure type forapplying the necessary force to the braking devices of the planetarytrains in order to control the rotation of the desired customary controldrums.

My selector mechanism is under manual control by the vehicle driver forcausing the common actuator to quickly and efficiently apply a brakingforce to the proper drum. This actuator, when of the fluid pressuretype, is operated by oil pressure, air pressure either above or belowatmospheric pressure, or other equivalent systems. I prefer, accordingto the teachings of this phase of my invention, to provide forenergizing the actuator by oil pressure.

A further object of my invention resides in the provision of an improvedselector control mechanism for use with change speed mechanisms of thecharacter aforesaid. I have provided a manually operable selectorelement for controlling all speed changes, including a neutral settingand reverse, my improved mechanism providing for rapid speed ratiochanges in automatic response to manipulation of the selector elementbetween any of its positions of control.

An additional object of my invention is to provide an improvedtransmission system adapted for manual control with a minimum of efiortand amaximum of safety to the operating parts, my system of controlsbeing arranged for manipulation with a minimum of effort and attentionon 5 the part of the vehicle driver, thereby increasing the safety ofvehicle driving and the comfort of the driver.

In carrying out the above objects of my invention I have provided anelectrical control for a fluid pressure supply valve, the arrangementinsuring release of a driving speed ratio immediately on manualadjustment of the selector element to a new setting; My mechanism is soconstructed and arranged that the fluid pressure 15 operator, acting toprovide a selected condition of drive, is immediately released at thestart of an adjusting movement of the manual selector element therebyenabling me to utilize the balance of the adjusting movement of themanual selector element to effect selection of a new set of speed ratiogears or a new condition in the transmission, preferably through theintermediary of a common selector operating element. Such arrangement,among other things, reduces the time required to produce changes in thetransmission settings, prevents danger of jamming the control parts, andrelieves the operator of any conscious effort timing the manual movementof the selector element with other parts of the sys tem.

More particularly, my invention provides a single manually operatedshifta'ble control element for selecting the various drives, includingreverse, through the planetary transmission. This shiftable element isso arranged that its stations of control are associated with an H-plateso that the control may be effected in similar manner to shiftingmovements of conventional gear shift levers of present day countersha'fttype transmissions or gear boxes. I have so arranged the parts thatduring selection of my control element, the planetary trainsautomatically respond to the H-movement to effect complete changes inthe. settings of the transmission as may be desired. I furthermorepreferably arrange my mechanism so that any setting of the transmissionmay be effected from any other setting Without manipulating anyintervening drives. The operator may select reverse or low speed from aneutral setting without operating the transmission for the interveningconditions of second and third or direct speeds.

A further object of my invention is to provide an improved arrangementof motor vehicle controls providing for improved ease of driving thevehicle particularly for city driving where frequent starting andstopping is required.

A planetary type of transmission presents a number of advantages overthe more conventional sliding gear types of transmissions, and myinvention is therefore primarily directed toward planetary types oftransmissions and power transmission systems employing planetary gearspeed ratio controlling devices although, as aforesaid, the fundamentalprinciples or" my invention may, if desired, be employed in connectionwith tran missions of other types including the aforesaid sliding geartypes of transmissions. By way of example in connection with theaforesaid advantages of the planetary transmission over moreconventional types, it may be noted that the planetary transmission,especially when used in conjunction with a fluid type of clutch betweenthe engine and transmission, permits gear changes without the necessityof releasing the heretofore conventional main clutch between the engineand transmission so as to obtain relatively quick gear changes andfaster acceleration of the motor vehicle. This is made possible byreason of the fact that the braking devices associated with theplanetary gear trains may quickly operate, the fluid clutch smoothingthe shock of the gear change by reason of its inherent slippingqualities.

Further objects and advantages of my invention will be apparent from thefollowing detailed description of a preferred embodiment of my invention, reference being had to the accompanying drawings in which:

Fig. l is a side elevational view somewhat diagrammatic in formillustrating my power transmission mechanism as a Whole, a portion ofthe transmission casing being broken away to illustrate the fluidpressure pump.

Fig. 2 is a plan view showing the manually controlled selector elementand H-plate therefor, taken as indicated by line 2-2 of Fig. 1.

Fig. 3 is a sectional view of the manually controlled selectingmechanism taken along the line 33 of Fig. 2.

Fig. 4 is a sectional view along the line l@ of Fig. 3.

Fig. 5 is a detail sectional elevational View of the yielding connectionshown in Fig. 1.

Fig. 6 is an enlarged sectional plan view through the transmission andfluid clutch.

Fig. 7 is a diagrammatic view illustrating the electrical system ofcontrol between the manually operated selector element and the fluidpressure control valve mechanism.

Fig. 8 is a sectional elevational view through the transmissionillustrating one of the speed ratio controlling devices and partsassociated therewith, the section being taken along the line 8-43 ofFig. 6.

Fig. Q is a rear elevational view illustrating the housing mechanism forthe fluid pressure operator and associated control valve, the view beingtaken as indicated by line 98 of Fig. 6.

Fig. 10 is a detail sectional elevational View taken along the linei6-l6 of Fig. 6.

Fig. 11 is an enlarged sectional view taken as indicated by the lineIl-H of Fig. 9.

Fig. 12 is a detail sectional elevational view taken along the linelZ-ll of Fig. 6.

Fig. 13 is a detailed sectional elevational view of a modified type ofmanual selector element.

Fig. 14 is a wiring diagram for the Fig. 13 arrangement.

Referring to the drawings, I have illustrated my invention in connectionwith a motor vehicle drive, this drive including a prime mover or engineA, a portion of which is shown in Fig. 1, a main clutch B driven fromthe engine, and a change speed transmission or gear box C driven fromthe clutch B. The drive passes from the transmission through a powertake-on shaft 20, which, as usual, may extend rearwardly of the vehicleto drive the usual ground wheels (not shown).

The clutch B may be of any suitable construc tion for controlling thedrive between engine A and transmission C, this clutch being illustratedin Fig. 6 in the form of a fluid coupling type having the usual drivingand driven cooperating vane members 2| and 22 respectively. The drivingvane member 25 is carried by the engine flywheel 23, the latter beingconnected as usual with the rear end of the engine crankshaft 24. Thedriven vane member 22 is splined to a hub 25 which in turn is splined at26 on the forward end of the driven shaft 27. This driven shaft extendsrearwardly to drive the power take-oil shaft 2!) through theintermediary of the various gear trains of transmission 0.

Where the power means for operating the transmission is afforded by afluid such as oil under pressure, the pump for placing the oil underpressure is preferably operated from the engine to maintain the fluidpressure even when 1e pump is idling. It is, therefore, preferred toprovide a pump drive from the driving clutch member 2! rather than thedriven clutch member 22 inasmuch as the latter may be stationary undercertain conditions of vehicle operation such as when the vehicle isstanding still with the engine idling.

This pump drive may be provided by reason of a driving sleeve or hollowshaft 29 mounted on the shaft Zl but rotatable independently thereof.The sleeve 26 has a hub or flange 3!] connected at 3! with the drivingvane member 2! of the clutch B so that even when the driven vane member22 is not being operated from the driving vane member 2!, the sleeve 29will be rotatably driven from the engine crankshaft 2t and flywheel 23.The pump drive from sleeve 29 will be more apparent hereinafter.

I have illustrated the fluid type of clutch B since a clutch of thischaracter has a number of advantages in connection with a transmissionof the planetary gear type C and in further connection with myarrangement of vehicle driving controls which will be presentlydescribed more in detail. Among the advantages of the fluid type ofclutch are the provision of a smooth drive for the vehicle through theplanetary transmission, relatively high power driving efficiency,automatic release of the drive between the engine and transmission whenthe engine is idling, and with the transmission manipulated to establishone of its driving gear ratio settings, and other well known favorablecharacteristics. I desire to point out, however, that other types ofclutches may be employed to control the drive between engine A andtransmission C within the broader aspects of my invention. For example,the well known type of friction clutch may be employed and manuallyoperated or automatically operated by the well known commercial type ofvacuum clutch releasing mechanism as will be readily understood.

I have illustrated the change speed transmission C as the epicyclic orplanetary type, this general form of transmission being well knownin'the art and, as usual, includes a plurality of transmission speedratio controlling clutches or brakes 32, 33, 3 and 35,these brakingcontrolling devices being' respectively adapted to actuate thetransmission in its first speed ratio or low gear, second speed ratio orintermediate gear, third speed ratio or direct drive, and reverse drive.Other speeds may be provided as desired.

The typical brake device 32 illustrated in Fig. 8

- actuating flanges 39 and ill positioned adjacent each other, meansbeing provided to move the band ends toward each other to contract theband 36 for causing the friction material 38 to brake rotary drum 371,the band having sufficient inherent resilience to expand away fromcontact with the drum when the actuating means is relieved at theflanged ends 39 and 49. In Fig. 8 the low speed ratio braking device 32is illustrated in its inoperative position whereby the drum 3? is freeto rotate through operation of the planetary gear set ll somewhatdiagrammatically illustrated in association with the drum 37. When thebraking device 32 is actuated by cohtracting the band 33, the drum 31 isheld against rotation, the driven shaft 20 in such instance beingoperated through the planetary gearing M to provide the low speed drivefor the motor vehicle. V e

In order to anchor the band 38 and to substantially equalize the brakingforces applied to drum l 3'! around the periphery thereof and therebysubstantially avoid a tendencytoward lateral loading of the drum andplanetarygearing transverse to the axis of the drum, I have provided theband with a circumferentially spaced pair of anchoring flanges E2. Theseflanges are connected through links 43 with the levers 44 pivotallymounted at M with the supporting, bracket 13 of the transmission sidecover casing 4?, the

levers' l l being interlocked at 48 so that move-' ment of one of theflanges 32 will be transmitted through the pivotal levers M and .thelinks 33 to the other portion of the band associated with the anchoringdevice. The links 43 are thus'pivotally vice 34 has its rotarycontrolling element 53 adapted for clutching action in a well knownmanner by frictional engagement through the discs 5| by an axiallymovable clutching member 52. The latter clutching member is thus engagedby the yoked end 54 of an actuating lever 55 pivotally mounted by a pin56 suitably supported in the transmission casing. On the opposite sideof pivot 56 the lever 55 is provided with a step actuating portion 59,the purpose of which will presently be more apparent. a

The transmission casing portions 38 and 58 are respectively providedwith the vertically spaced inwardly extending supporting brackets 62 and63, respectively, these brackets being formed with coaxial splinedopenings 34 and 55, respectively. Splined within these openings are thenuts 66 and 51 which are axially and oppositely ends 68 and 69 of anoperating oscillatory shaft or screw Ill. v r l The shaft 10 extendsthrough openings 'II and 12, respectively, formedto open laterally inthe aforesaid band ends 39 and 40, these openings havingconsiderableclearance with shaft 10 so as not to bind on the shaft when the band iscontracted and expanded. In order to transmit the thrust of the nuts 66and 61 to the flanges 39 and 46 so as to relieve distorting loads on theshaft l3 and parts associated therewith, each nut operates a sleeve 13having a curved face 14 engaging a curved face of band end 39 or 40. Theengaged curved faces 14 and 15 provide a rocking freedom of action, eachsleeve 13 having a clearance indicated at 76 with the shaft 1!].

The operating shaft 10 of the low speed braking device 32 has, itsportion thereof intermediate the bandends 39 and 40 formed with a gear11, the means for oscillating shaft 10 through the gear ll beinghereinafter more particularly described.

In the operation of the low speed controlling device 32 as thus fardescribed, it will be apparent that when the shaft If! is given a rotarymovethrough the transmission. When the shaft ill I is rotated in theopposite direction, the nuts 66 and 61' are moved away from each otherand the band 33 is expanded to permit the drum 37 to again rotate andthereby relieve the drive through the transmission controlling device32.

In order to avoid repetition I have not illustrated all of the detailsof the brake operated means associated with the controlling devices 33and 33, it being understood that such operating means are similar tothat described in connection with the controlling device 32. Forconvenience of reference the operating shaft or screw for the reversespeed braking device is designated as w and the corresponding shaft forthe second speed braking device 33 is designated as It. The gearsassociated withthese screw shafts are respectively designated as TI" andN As will be more apparent presently, the gears 11, Tl and 17 and leverend 59 are adapted to be selectively operated in order to selectivelycontrol the engagement and release of the respective speed ratiocontrolling devices 32, 35, 33 and 34.

I will next describe the common operating means or selector operatingelement which is adapted for selective engagement under manual controlwith the aforesaid screw gears 11, H and N for respectively operatingthe speed ratio controlling devices 32, 35 and 33; also for operatingthe direct or third speed controlling device 34'; and also forestablishing a neutral condition in the transmission.

The transmission casing is adapted to support a pair of axially alignedbearings for receiving the reciprocating and oscillating rack oractuating shaft D. The forward bearing is provided by a bushing 18non-rotatably received in an opening of a casing support bracket 19, thebushing being held against axial displacement forwardly by a bushingprojection 80 and rearwardly by the set screw 8|. The rear bearing isprovided by a member 82 which is disposed in a suitable opening 83 inthe rear end wall 84 of the transmission casing, the rear end of theactuating shaft D being also supported by a piston for reciprocating theshaft and which will presently be referred to in detail.

This actuating shaft D has a series of teeth forming a rack adapted tobe brought into operative association with each of tie screw gears,these racks being designated at 85 and 87 for respectively operating thescrew gears H, W and ll. T .e forward end of shaft D is further providedwith a third speed actuating projection 88 adapted for engagement withthe lever shoulder 59 for operating the third speed controlling device 3It will be noted hat the racks and projection 83 are longitudinallyspaced along the shaft D that they are also spaced circumferentially ofthe shaft whereby upon progressive rotation of the shaft only one of theracks and the projection 83 will engage its associated screw gear orlever 55 at any time.

In Figs. 6 and 8 it will be noted that the shaft D is positioned so thatthe low speed rack 85 is in position for operating the low speed gear TEand when the shaft D is moved forwardly or to the left, as viewed inFig. the low speed screw it! will be rotated to cause the aforesaidbraking operation of the low speed controlling device to cause the lowspeed drive to take place through the transmission. It will furthermorebe noted that with the low speed rack 25 in the position illustrated,the remaining racrs ill, 86 as well as projection 88 are free fromengagement with their respective associated gears 7?, ll and the leverE5. From Fig. 6 it will be noted that the shaft D has a neutral spacelongitudinally and circumferentially between the second speed rack 81and the direct projection 88, this space being aligned longitudinally ofshaft D with a neutral lug N (see Fig. 12) so that when the shaft ispositioned with this space facing the screw gears, each of the racks, aswell as projection 30, will be free from contact with their associatedscrew gears and lever 55 and the transmission will be in neutral atwhich time the various braking devices 32, 33, 3 3 and 35 are released.

In order to insure proper selective rotation of the shaft D prior toreciprocating action thereof, bushing '58 has a series of internal lugs8Q spaced to receive projections 56 to 51%, inclusive, these projectionsbeing formed as part of shaft D and being respectively lcngi'ucinallyaligned with racks 85, 8S, projection 88. rack ill, and the neutralspace. In Fig. these projections 93 to 94 also bear legends i, B, 3, Nrespectively coresponding to the functions of control of the alignedracks, projection and space aforesaid. Only when the shaft D is properlyadjusted to align the projections with the spaces between lugs 89 canthe shaft D reciprocatcd for its power stroke.

In order to selectively rotate the rack D for selectively engaging theracks and projection 38 thereof with the respective screw gears andlever 55, and also for axially operating the shaft in the variouspositions of selective adjustment, the following mechanism is provided.

Rearwardly adjacent the reverse rack 38, the shaft D is provided with acircular rack or gear meshing with the segmental rack 35 rotatably fixedwith a shaft d? best shown in Fig. 8, this shaft being rotatablyjournalled by a bearing 98 carried by the transmission side cover 89.The shaft $1 has fixed thereto, outwardly of the transmission cover, alever 5 96 connected at lili (see Fig. 1) to a Bowden wire operatingrnechanism Hi2 which extends forwardly for pivotal connection with theball end I03 of a lever NM.

The Bowden wire mechanism 82 has a guide bracket Hi6 rigidly secured tothe transmission housing and the forward end portion is also slidablyguided at l0? through the vehicle dash and .toe board structure M28, asbest shown in Fig. 1.

A yielding connection is preferably provided at some convenient pointbetween the manual selector element, which will be shortly described,and the sector N15 for rotatably adjusting the shaft D. I haveillustrated this yielding connection in Fig. 5 intermediate the leverball end 23 and the forward end of the Bowden wire mechanism 152. Thewire 502 is anchored at its forward end to the housing 9E3 provided withthe preloaded oppositely acting springs H6 and iii which respectivelyact against the ball seats H2 and H3. The springs HE) and ill havesufficient rigidity so that normally they provide a rigid connectionbetween lever HM and Bowden wire lflZ. However, if for any reason themanually operated adjusting mechanism for the shaft D should bind at anypoint, the mechanism will be protected during any manual adjustment oflever not under such conditions by reason of the ability of springs H0and Hi to yield. The yielding connection also permits movement of themanual control mechanism suhiciently to unload the rack D during speedratio selecting operations as will presently be more apparent. Thisyielding connection is therefore in the nature of a safety device forthe manually controlled selector oprating mechanism and also functionsduring speed selections.

The lever Hi l is a part of the manually controlled device generallydesignated at E for selectively controlling or manipulating thetransmission speed ratios as will be presently more apparent.

Returning now to Fig. 6, the selector rack shaft D has its rear endadjacent the circular rack provided with a groove l H! adapted toreceive the flange N5 of the fluid pressure operating iston assembly H6which reciprocates in the cylinder H? which is a part of a casting H8,best illustrated in Figs. 9 and 11, as attached at MS to the rear wall84 of the transmission. The piston H6 provides the actuating member ofthe power operating means or prime mover means G for moving shaft Dunder power to engage the various brake bands and the direct speedclutch M. The power operating means G is illustrated in the form of apressure fluid operable motor.

For yieldingly urging the rack shaft D to the right or rearwardly torelease the speed ratio controlling devices, I have provided prime movermeans F preferably in the form of a compression coil spring surroundingthe rear end portion of shaft D between the fixed abutment provided forthe bearing member and acting on piston H6. In Fig. 6 it will be notedthat the bearing member 8:? is conveniently held in position by clampingthe same between the rear casing wall 8:"; of the transmission and thecasting assembly H8.

The piston H8 has the flexible sealing cup lZQ adapted to seal thepiston against escape of the fluid forwardly of the cylinder til, thecup i213 bearing against the walls of the cylinder under the action ofthe fluid pressure introduced to the pressure chamber 52E. The sealingcup is held in place by the rearwardly extending threadiii) ed reducedend I22 of shaft D together with the fastener or nut I23. Fluid, such asoil under pressure, is introduced to the pressure chamber I2I as bestshown in Fig. 11, through a passage I24 leading to the valve controlledchamber or cylinder I25 which slidably receives the fluid pressuresupply controlling valve I26.

The cylinder I25 is supplied with oil under pressure through a passageI21 which receives the oil by a conduit I28 formed in the transmissioncasing casting. The conduit I28, as best shown in Fig. 1, leads to thedelivery side of a suitable pump I29driven from its location in the oilstoring sump or reservoir I36 of the transmission casing by reason ofthe shaft I3I provided at its forward end by a driving gear I32. Thisgear meshes with an idler gear I33 which in turn meshes with the drivingpinion I34 (see Fig. 6) carried on the rear end of the driving sleeve 29I which, as aforesaid, is fixed to the fluid impeller A valve guideportingmember I35 is pressed into the cylinder I so as to be fixedtherewith, :this porting member having annular conduits I36 25 and I31,respectively, communicating with the passages I 21 and I24. The annularpassages I36 and I31 are also respectively provided with the inwardlyextending ports I38 and I39 adapted for. control by'the valve I26. Thisvalve has a sliding fit within the cylindrical bore I46 of the porting.member I and extending axially through the valve with sufficientclearance to prevent binding'thereof, is a valve operating rod I4Ipreferably of brass or other non-magnetic mate- 35 rial. The rod I4Iextends forwardly of valve I26 and is provided with a stop I42 adaptedto limit forward movement of valve I26 under the influence of a springI43 which operates between the valve spring abutment I44 and a rearfixed abut- 0 ment I45, the latterhaving associated therewith the fluidpressure sealing washers I46 acting against the threaded stem I41 of.the electrical solenoid I48. i

The rear end of valve operating rod MI is connected at I49 with thearmature I56 of solenoid I48, the armature being adapted forreciprocation in the solenoid cylinder I5I having the rear abutmentI52.. Any fluid which may leak rearwardly beyond thevalve I25 is adaptedto drain down- 50 wardly from the portion of easing IIB which enclosesthe valve operating spring I43 by reason of the drain conduit I53, thisconduit then extending forwardly to the main body of the transmi sionwhere, the oil is permitted to drain back to 5 the reservoir I36. Afurther conduit I54 is adapted to return the oil from operating cylinderI2l .back to the reservoir, this conduit I54 opening rearwardly to theforward end of valve I26.

The valve I26 has the reducedvalving portion 50 I55 adapted to place theconduits I21 and I24 in communicationwhen the valve is in its forwardposition under the influence of spring I43. In the drawings, the partsare shown in their positions for operating the low speed controlling 5 1device 32, the valve I26 being positioned forwardly so that the fluidpressure is just being delivered from thesupply conduit I 21 tothe'conduit I24 andthe pressure chamber I2I of the cylinder I I1. 'Whenthe valve I26 moves r'earwardly under the 70 influence of solenoid I48,as wi l be presently more apparent, the spring I43 will be compressedand the reduced portion I55 of the valve will no longer providecommunication between conduits I21 and jI24. At'.such time the conduitI24 will be open 5 through. the port I39 to the discharge conduit I54for returning the oil from the pressure chamber I2I back tothe reservoirI 36. When the valve I26 moves forwardly under the influence of springI43, the reduced valve portion I55 affords communication betweenconduits I21 and I24 to supply fluid pressure from the pump I29 tooperate the piston I I6 and selector rack shaftD forwardly for actuatingone of thespeed ratio controlling devices 32, 33, 34 or 35, depending onthe rotative selective adjustment of the selector rack shaft, as will bepresently more apparent.

The function and operation of the manually controlled selector mechanismEin relationto the selector rack shaft D will now be further described.

The mechanism E is located at some convenient point for manipu ation bythe vehicle driver while driving the vehicle. I have illustrated thismechanism as mounted at the rear of the instrument panel I56 forwardlyof the right hand portion of the usual steering wheel I51. The mechanismcomprises a lower casing bracket member I58 to which is secured byfasteners I56 an upper casing member having the end support walls I66,I6I and the upper wall I 62 which provides the H- plate for the manuallyoperable selector element or change speed operating lever I 63. In theillustrated arrangement, the lever i63 does not, itself,

' enter the H-plate I62 but is formed with a bottom portion I64extending forwardly at right angles to the handle portion of lever I63for slidable support in the guideways I65 and I66 carried by the casingmember I58. The lever portion I64 is capable of forward and rearwardsliding movement in these guideways and also rotation therein, thislever portion having secured thereto an upstanding finger I61, the upperend of which operates in the slots of the H-plate I62 in guiding theshifting movements of lever I63.

The H-plate I62 comprises the elongated slot I68, the relatively shorterslot I69 parallel thereerably being disposed at the intersection ofslots I69 and I16. A spring I1I acts on finger I61 to yieldingly urgethe same toward the slot I69 so that when the lever I63 is adjusted tothe neutral position at slot I16, the lever I63 and finger I61 will beswung to the righthand end of slot I16 as viewed in Fig. 3 and againstthe right hand wall of slot I69 for limiting this swinging movement andin engaging and operating the neutral switch at this point. which willbe shortly referred to in greater detail.

The mechanism is so arranged that longitudinal movements of lever I63control rotation of shaft D and hence the selective operative connectionof this shaft with the various transmission control devices 32 to 35, orneutral. Thus, as the lever I63 is moved forwardly from the illustratedposition of first or low speed to the reverse position at the forwardend of slot I68, the shaft D is successively positioned for operation ofthird speed, second speed, and reverse, the neutral position also beingreached between third and second and it is for this reason that slot I68is made longer than I69 so that all the control stations are included inthe limits of longitudinal travel of lever I63. Of course, to selectstations 2 or 3, the lever I63 must be adjusted so that the finger I61will pass through the neutral gate I19 and into slot I69 so that, by wayof example,

if the lever IE3 is adjusted from I to R, the shift lever is notmanipulated into its intermediate positions. I have also provided asystem of control for the solenoid I43 so that in going from N to R orI, the transmission will not be operated for stations 2 or 3 althoughthese are intermediate the longitudinal shifting limits of lever I63.

Associated with each of the five illustrated stations of transmissioncontrol, I have provided an electrical circuit controlling switch I72each of which is provided with a conductor element I73 and an insulatedplunger I14 connected therewith. According to the wiring diagram in Fig.7 I may arrange the switches I12 so that they are in series between theconducting wires I75 and I16, a spring Ill yieldingly acting on eachconductor I73. tending to maintain the circuit closed at each switch.The plungers I'M- have end portions which, when the switches are closed,respectively project at the various stations of transmission controlinto the ends of slots I58 and I89 and also at the neutral gate I?!) forcontact with the upper end of finger I6? when the latter is positionedat any of the control stations.

Thus, when the finger I6! is positioned at the low speed station or at Iin Fig. 3 as illustrated, the plunger I'M of the low speed switch I12will be moved against the action of spring II! to break the circuit atthis switch according to the illustration of the parts in Fig. 7.

Referring again to the wiring diagram shown in Fig. 7, the circuit maybe considered to start from ground I18 then along wire I19 to storagebattery I86, thence through wire Ilt and switches I72 through the wireI'IS to the windings Iiii of the solenoid armature I58 aforesaid, thecircuit then being grounded at I18.

My manually controlled selector operating mechanism is practicallyinstantaneous in its response to selective adjustment of the lever E63and the different selections may be made as rapidly as desired. In thegeneral operation of the selector mechanism E for changing thetransmission speed ratio, the operator moves the selector lever I63 toadjust the finger IE1 from one of the stations of control at the H-p1ate I62. Just as soon as the selector lever is so moved, one of theswitches H2 which was previously held open by the finger I61, will beclosed thereby inducing an electrical circuit through the solenoidwindings I8i for causing the solenoid armature I58 to move rearwardly.This rearward movement of the solenoid armature will adjust the valveI26 rearwardly to place the fluid pressure chamber IEI of cylinder IIIin communication with the reservoir discharge conduit I54 whereupon thespring F will move the shaft D rearwardly to release any of thecontrolling devices 32 to 35 which may have been in operation. Thisentire phase of the operation takes place very quickly during theinitial part of adjustment of the selector lever from any of itsstations including the neutral station N.

It should be noted at this point that the initial part of the adjustmentof lever I53, as aforesaid, is permitted to take place by the yieldingconnection between lever I04 and Bowden wire Hi2. Thus, even thoughshaft D is in a position of actuation for one of the controllingdevices, lever may be initially moved relative to shaft D sufiicientlyto cause actuation of the solenoid I 48 to immediately move shaft Drearwardly to relieve any controlling device, further longitudinalmovement of lever IE3 rotating shaft D to a desired selective newposition.

When the selector lever is moved to a new station it will be apparentthat one of the switches I12, corresponding to such newly selectedposition, will be opened, the remaining switches being closed, therebyinterrupting the electrical circuit through the solenoid windings I8I.At such time the spring I43 will immediately act to move the valve I26and armature I50 forwardly to establish communication between the fluidpressure supply conduit I2"! and the pressure chamber I24. This willimmediately cause a forward movement induced by the fluid pressure onthe shaft D for operating one of the selector controlling devices whichmay have been selected for the new position or else for operating theshaft D without causing any movement of any of the speed ratiocontrolling devices in the event that neutral was selected.

Returning now to the aforesaid cycle of operation and to the point wherethe selector lever I 63 was described as having been moved from one ofthe stations preparatory to movement thereof into a newly selectedstation, just as soon as the solenoid armature I50 moves rearwardly tooperate valve I26 to vent the pressure chamber I2I, it will be apparentthat the fiuid pressure load is removed from the shaft D which is now inits rearward position so that longitudinal movement of lever I63 willcause corresponding longitudinal movement of lever IM and will operatethrough the Bowden wire mechanism 02 and sector 96 to rotatably adjustshaft D into a new position for actuation of one of the speed ratiocontrolling devices. The mechanism operates almost instantaneously sothat there is little resistance to adjustment of selector lever I63 froma position to any station and any binding tendency experienced at theshaft D will be taken up yieldingly through the Bowden wire connectionat I69.

One feature of my invention resides in the simplified motor vehiclecontrol which is possible by my novel transmission system, the selectorlever I63 being positioned for manipulation laterally to the right ofthe steering wheel I57 and just therebelow so that the right hand of theoperator on the steering wheel maybe quickly and conveniently moved tothe lever "33 for effecting a change in the condition of thetransmission.

Referring now to Figs. 13 and 14, I have illustrated a modifiedarrangement wherein the solenoid operated valving mechanism is adaptedfor electrical switch control prior to movement of the manual selectorelement. By reason of such arrangement, a single switch may be locatedat some convenient point always accessible to the driver for relievingthe fluid pressure acting on the selector operating rack prior to makinga selection by the manual selector element or at any other time. Formaximum convenience, I preferably locate this switch in the handle ofthe selector element so that the operator in grasping the handle wouldincidentally operate the switch and hold the switch closed during ashifting operation, the switch then being opened automatically inresponse to release of the handle.

In Fig. 13 the selector element IE3 is intended, by way of illustration,for substitution for the element I63 in the Fig. 1 system. The onlychanges in the prior system that need be made consist in the eliminationof switches I72 and the installation of the Fig. 13 selector elementwhich differs from element I63 in that it is hollow to receivetheelectrical conducting wires and has a switch carried thereby.

In Fig. 13 element [63 is tubular at I82 and carries the knob or handleI83 provided with the laterally opening bore I84 slidably receiving theswitch operating plunger I85 for closing switch ll?! against the actionof spring I'll which normally holds the switch open. For limitingoutward movement of plunger I85, the latter has a slot I85 through whichthe stop pin I81 passes, this pin being fixed in the handle I83.

The leads and H5 tothe switch H2 (see Fig. 14) respectively correspondto leads H5 and H6 of Fig. '7, the remainder of the wiring system beingsimilar to Fig. 7 as indicated by the same reference numerals.

In operation of the Fig. 13 arrangement, for manipulating the selectorelement 163*, the operator first grasps handle 183' thereby operatingplunger I 85 and closing the electrical circuit. This has the sameeffect on the system as heretofore described in connection with closingany of the switches H2. shifted to the desired station of control whilemaintaining switch l'lZ closed and upon release of handle I83, theswitch opens and the selected speed ratio control device is operated asbefore.

The yielding connection shown in Fig. 5 is preferably retained in theFig. 13 arrangement as a safetyfactor in case the parts should bind,although with the Fig. 13 arrangement it is not necessary to shiftelement lSt to first relieve the fluid pressure because switch H2 willbe closed prior to shifting. In fact, one of the speed ratio drivingdevices being engaged, the operator will find it necessary to close theswitch before the rack can berotated by shifting element 53 ment asshiftable in an l-l-shaped path to the various stations of transmissioncontrol, I desire to point out that this reference to the path shape isused generally, it being obvious that the number of stations and theirrelative positions may cause some variance in the particular shape ofthe path movement. Omitting the second speed drive, for example, wouldobviously result in omitting the second speed arm or leg of the H-slot.

Various modifications and changes will be apparent from the teachings ofmy invention, as defined in the appended claims, and it is not myintention to limit my invention to the particular details ofconstruction and mode of operation shown and described for illustrativepurposes.

I claim:

1. In a motor vehicle transmission of the planetary gear type having aplurality of planetary gear operated rotary controlling elements forrespectively controlling the drive to the vehicle in a plurality offorwardspeeds and in reverse, a plurality of means respectivelyassociated with said rotary elements and adapted for operativeengagement therewith to control said to said plurality of forwarddriving-speeds and The element 163 is then While I have described mymanual selector el'e-I reverse for controlling the operation of saidpower operating means and said selector operating means, means formounting said selector element for shifting movements in a substantiallyH- shaped path, electrically controlled means for controlling operationof one of said operating means, and electrical switch means actuated inresponse to shifting movements of said selector tively controlling theapplication of said poweroperating means to said plurality of elementengaging means, a selector element manually shiftable to a plurality ofstations of transmission control respectively corresponding to saidplurality of forward driving speeds and reverse for controlling theoperation of said power operating means and said selector operatingmeans, means for mounting said selector element for shifting move mentsin a substantially H-shaped path, electrically controlled means forcontrolling operation of said power operating means, and electricalswitch means actuated in response to shifting movements of said selectorelement for controlling energization of said electrically controlledmeans.

3. In a motor vehicle transmission of the etary gear type having aplurality of planetary gear operated rotary controlling elements forrespectively controlling the drive to the vehicle in a plurality offorward speeds and in reverse, a plurality of means respectivelyassociated with said rotary elements and adapted for operativeengagement therewith to control said forward and reverse drives, poweroperating means for selectively operating said plurality of elementerr-- gaging means, selector operating means for selectively controllingthe application of said power operating means to said plurality ofelement engaging means, a selector element manually shifable to aplurality of stations of transmission control respectively correspondingto said plurality of forward driving speeds and reverse for controllingthe operation of said power operating etary gear type having a pluralityof planetary gear operated rotary controlling elements for.

respectively controlling the drive to the vehicle in a plurality offorward speeds and in reverse, a plurality of means respectivelyassociatedwith said rotary elements and adapted for operative engagementtherewith to control said forward selectively operating said pluralityof element engaging means, selector operating means for selectivelycontrolling the application of said power operating means to saidplurality of element engaging means, a selector element manuallyshiftablc to a plurality of static .s of tranrmission controlrespectively corresponding to said plurality of forward driving speedsand reverse for controlling the operation of said power operating meansand said selector operating means, means for mounting said selectorelement for shifting movements in a substantially l-l shaped path,electrically controlled means for controlling operation of said poweroperating means, electrical switch means actuated in response toshifting movements of said selector element for controlling energizationof said electrically controlled means, and means including a Bowden wiremechanism. operably connecting said selector el ment with said selectoroperating means.

5. In a motor vehicle transmission of the planetary gear type having aplurality of planetary gear operated rotary controlling elements forrespectively controlling the drive to the vehicle in a plurality offorward speeds and in reverse, a plurality of means respectivelyassociated with said rotary elements and adapted for operativeengagement therewith to control said forward and reverse drives, poweroperating means for selectively operating said plurality of elementengaging means, selector operating means for selectively controlling theapplication of said power operating means to said plurality of elementengaging means, a selector element manually shiftable to a plurality ofstations of transmission control. respectively corresponding to saidplurality of forward driving speeds and reverse for controlling theoperation of said power operating means and said selector operatingmeans, means for mounting said selector element for shifting movementsin a substantially H-shaped path, electrically controlled means forcontrolling operation of one of said operating means, electrical switchmeans actuated in response to shifting movements of said selectorelement for controlling energization of said electrically controlledmeans, and shifting movement transmitting means operahly connecting saidselector ele ment with the other of said operating means.

In a motor vehicle transmission of the planetary gear type having aplurality of planetary gear operated rotary controlling elements forrespectively controlling the drive to the vehicle in a plurality offorward speeds and in reverse, a plurality of means respectivelyassociated with said rotary elements and adapted for operativeengagement therewith to control said forward and reverse drives, poweroperating means for selectively operating said plurality of elementengaging means, selector operating means for selectively controlling theapplication of said power operating means to said plurality of elementengaging means, a selector element manually shiftable to a plurality ofstations of transmission control respectively corresponding to saidplurality of forward driving speeds and reverse for controlling theoperation of said power operating means and said selector operating memeans for mounting said selector element for shifting movements in asubstantially H-shaped path, electrically controlled means forcontrolling op-eration of said power operating means, electrical switchmeans actuated in response to shifting movements of said selectorelement for controlling energization of said electrically controlledmeans, and shifting movement transmitting means operably connecting saidselector element with said selector operating means.

7. In a motor vehicle transmission of the plan-- etary gear type havinga plurality of planetary gear operated rotary controlling elements forrespectively controlling the drive to the vehicle in a plurality offorward speeds and in reverse, a plurality of means respectivelyassociated with said rotary elements and adapted for operativeengagement therewith to control said forward and reverse drives, poweroperating means for selectively operating said plurality of elementengaging means, selector operating means for selectively controlling theapplication of said power operating means to said plurality of elementengaging means, a selector element manually shift able to a plurality ofstations of transmission control respectively corresponding to saidplurality of forward driving speeds and reverse for controlling theoperation of said power operating means and said selector operatingmeans, means for mounting said selector element for shifting movementsin a substantially H-shaped path, electrically controlled means forcontrolling operation of one of said operating means, electrica-l switchmeans actuated in response to shifting movements of said selectorelement for corn trolling energization of said electrically con trolledmeans, and yielding operating means operably connecting said selectorelement with the other of said operating means so constructed andarranged as to provide shifting movement of said selector element fromone of said stations to another with delayed operation of the last saidoperating means.

8. In a motor vehicle transmission of the planetary gear type having aplurality of planetary gear operated rotary controlling elements forrespectively controlling the drive to the vehicle in a plurality offorward speeds and in reverse, a plurality of means respectivelyassociated with said rotary elements and adapted for operativeengagement therewith to control said forward and reverse drives, poweroperating means for selectively operating said plurality of elementengaging means, selector operating means for selectively controlling theapplication of said power operating means to said plurality of elementengaging means, a selector element manually shiftable to a plurality ofstations of transmission control respectively corresponding to saidplurality of forward driving speeds and reverse for controlling theoperation of said power operating means and said selector operatingmeans, means for mounting said selector element for shifting movementsin a substantially l-l-shaped path, electrically controlled means forcontrolling operation of said power operating means, electrical switchmeans actuated in response to shifting movements of said selectorelement for controlling energization of said electrically controlledmeans, and yielding operating means operably connecting said selectorelement with said selector operating means so constructed and arrangedas to provide shifting movement of said selector element from one ofsaid stations to another with delayed operation of said selectoroperating means.

9. In a motor vehicle transmission of the planetary gear type having aplurality of planetary gear operated rotary controlling elements forrespectively controlling the drive to the vehicle in a plurality offorward speeds and in reverse,

- a plurality of means respectively associatedwith said rotary elementsand adapted for operative engagement therewith to control said forwardand reverse drives, fluid power operating means for selectivelyoperating said plurality of element engaging means, selector operatingmeans for selectively controlling the application of said poweroperating means to said plurality of elementengaging means, a selectorelement manually shiftable to a plurality of stations of transmissioncontrol respectively corresponding to said plurality of forward drivingspeeds and reverse for controlling the operation of said poweroperatingmeans and said selector operating means,

means for mounting said selector element for shifting movements in asubstantially H-shaped path, electrically controlled means forcontrolling I operation of one of said operating means, and

electrical switch'means actuated in response to shifting movements ofsaid selector element for controlling energization of said electricallycontrolled means.

t 10, In a motor vehicle transmission of the planetary gear type havinga plurality of planetary gear operated rotary controlling elements forrespectively controlling the drive to the vehicle in a plurality offorward speeds and in reverse, a plurality of means respectivelyassociated with said rotary elements and adapted for operativeengagement therewith to control said forward and reverse drives, fluidpower operating means for selectively operating said plurality ofelement engaging means, selector operating means for application of saidpoweroperating means to selectively controlling the said plurality ofelement engaging means, a selector element manually shiftable to aplurality of stations of transmission control respectively correspondingto said plurality of forward driving speeds and reverse for controllingthe operation of said power operating means and said selector operatingmeans, means for mounting said selector element for shifting movementsin a substantially H-shaped path, valving means controllingcommunication between a source of fluid underpressure and said fluidpower operating means, and means for controlling operation ofsaid-valving means in response to shifting movements of said selectorelement between said stations. i 1

11. In a motor vehicle transmission of the planetary gear type having aplurality of planetary gear operated rotaryicontrolling elements forrespectively controlling the drive to the vehicle in a plurality offorward speeds and in reverse, a plurality of means respectivelyassociated with said rotary elements and adapted for operativeengagement therewith to control said forward and reverse drives, fluidpower operating means for selectively operating said plurality ofelement engaging means, selector operating means for selectivelycontrolling the application of said power operating means to saidsolenoid means for operating said valving means,

and electrical switch means actuated in response -to shift ng movementsof said selector element for controlling energization of said solenoidmeans.

i 12. In a'motor vehicle transmission of the, 5 planetary gear typehaving a plurality of planetary gear operated rotary controllingelements for respectively controlling thedrive to the vehicle in aplurality of forward speeds and in re- I of element engaging means, aselector element manually shiftable to a plurality of stations oftransmission control respectively corresponding to said plurality offorward driving speeds and reverse for controlling the operation of saidpower operating means and said selector operating means, means formounting said selector element for shifting movements in a substantially25 H-shaped path, valving means controlling communication between asource of fluid under pressure and said fluid power operating means,means for controlling operation of said valving means in response toshifting movements of said selecr30 tor element betweensaid stations,and means operably connecting said selector operating means with saidselector element. A j

13. In a, motor vehicle transmission of theplanetary gear type having aplurality of planetary 535 gear operated rotary controlling-elements forrespectively controlling the drive to the vehicle in a plurality offorward speeds and in reverse, a plurality of means respectivelyassociated with said rotary elements and adapted for operative 4oengagement therewith to control said forward and reverse drives, fluidpow r operating means for selectively operating said plurality ofelement engaging means, selector operating means for selectivelycontrolling the application of said power my,

operating means to said plurality of element engaging means, a selectorelement manually shiftable to a plurality of stations of transmissioncontrol respectively corresponding to said plurality of forward drivingspeeds and reverse for controlling the operation of said power operatingmeans and said selectoroperating means, means for mounting said selectorelement for shifting movements in a substantially H-shaped path,valvingmeans controlling communication between a source of fluid underpressure and said fluid power operating means, solenoid means foroperating said valving means, electrical switch means actuated inresponse to shifting movements of said selector element for controllingen- 0 ergization of said solenoid means, and means operably connectingsaid selector operating means with said selector element.-

14. In a motor vehicle transmission of the planetary gear type having aplurality of planetary gear operated rotary controlling elements forrespectively controlling the driveto the vehicle in a plurality offorward speeds andin reverse, a plurality of means respectivelyassociated with said rotary elements and adapted for operative 0engagement therewith to control said forward and reverse drives, poweroperating means for selectively operating said plurality of element engaging means, said power operating means inc1llding a common, selectoroperating member 1 adapted for selective operative connection with saidplurality of element engaging means, a se lector element manuallyshiftable to a plurality of stations of transmission controlrespectively corresponding to said plurality of forward driving speedsand reverse, means for controlling adjustment of said common operatingmember in response to shifting of said selector element, means forcontrolling operation of said power operating means in response toshifting of said selector element, and means for mounting said selectorelement for shifting movements in a substantially H-shaped path.

15. In a motor vehicle transmission of the planetary gear type having aplurality of planetary gear operated rotary controlling elements forrespectively controlling the drive to the vehicle in a plurality offorward speeds and in reverse, a plurality of means respectivelyassociated with said rotary elements and adapted for operativeengagement therewith to control said forward and reverse drives, poweroperating means for selectively operating said plurality of elementengaging means, said power operating means including a common selectoroperating member adapted for selective operative connection with saidplurality of element engaging means, a selector element manuallyshiftable to a plurality of stations of transmission controlrespectively corresponding to said plurality of forward driving speedsand reverse for controlling the operation of said power operating means,means for controlling adjustment of said common operating member inresponse to shifting of said selector element, means for mounting saidselector element for shifting movements in a substantially H- shapedpath, electrically controlled means for controlling operation of saidpower operating means, and electrical switch means actuated in responseto shifting movements of said selector element for controllingenergization of said electrically controlled means.

16. In a motor vehicle transmission of the planetary gear type having aplurality of planetary gear operated rotary controlling elements forrespectively controlling the drive to the vehicle in a plurality offorward speeds and in reverse, a plurality of means respectivelyassociated with said rotary elements and adapted for operativeengagement therewith to control said forward and reverse drives, fluidpower operating means including a common selector operating memberadapted for selective operative connection with said plurality ofelement engaging means, valving means controlling communication betweena source of fluid under pressure and said fluid power operating means, aselector element manually shiftable to a plurality of stations oftransmission control respectively corresponding to said plurality offorward driving speeds and reverse for controlling the operation of saidpower operating means, means for controlling adjustment of said commonoperating member in response to shifting of said selector element, meansfor mounting said selector element for shifting movements in asubstantially H-shaped path, and means for controlling operation of saidvalving means in response to shifting movements of said selector elementbetween said stations.

17. In a motor vehicle transmission of the planetary gear type having aplurality of planetary gear operated rotary controlling elements forrespectively controlling the drive to the vehicle in a plurality offorward speeds and in reverse, a plurality of means respectivelyassociated with said rotary elements and adapted for operativeengagement therewith to control said forward and reverse drives, fluidpower operating means including a common selector operating memberadapted for selective operative connection with said plurality ofelement engaging means, valving means controlling communication betweena source of fluid under pressure and said fluid power operating means, aselector element manually shiftable to a plurality of stations oftransmi I sion control respectively corresponding to said plurality offorward driving speeds and reverse for controlling the operation of saidpower operating means, means for controlling adjustment of said commonoperating member in response to shifting of said selector element, meansfor mounting said selector element for shifting movements in asubstantially H-shaped path, solenoid means for operating said valvingmeans, and electrical switch means actuated in response to shiftingmovements of said selector element for controlling energization of saidsolenoid means.

18. In a motor vehicle transmission of the planetary gear type having aplurality of planetary gear operated rotary controlling elements forrespectively controlling the drive to the vehicle in a plurality offorward speeds and in reverse, a plurality of means respectivelyassociated with said rotary elements and adapted for operativeengagement therewith to control said forward and reverse drives, poweroperating means for selectively operating said plurality of elementengaging means, selector operating means for selectively controlling theapplication of said power operating means to said plurality of elementengaging means, a selector element manually shiftable to a plurality ofstations of transmission control respectively corresponding to saidplurality of forward driving speeds and reverse for controlling theoperation of said power operating 1 means and said selector operatingmeans, means for mounting said selector element for shifting movementsin a substantially H-shaped path, electrically controlled means forcontrolling operation of said power operating means, and electricalswitch means at each of said stations adapted for operation by selectiveshifting movements of said selector element for controlling energizationof said electrically controlled means.

19. In a motor vehicle transmission of the planetary gear type having aplurality of planetary gear operated rotary controlling elements forrespectively controlling the drive to the vehicle in a plurality offorward speeds and in re- Verse, a plurality of means respectivelyassociated with said rotary elements and adapted for operativeengagement therewith to control said forward and reverse drives, poweroperating means for selectively operating said plurality of elementengaging means, said power operating means including a common selectoroperating member adapted for selective operative connection with saidplurality of element engaging means, a selector element manuallyshiftable to a plurality of stations of transmission controlrespectively corresponding to said plurality of forward driving speedsand reverse, means for controlling adjustment of said common operatingmember in response to shifting of said selector element, means formounting said selector element for shifting movements in a substantiallyH-shapecl path, electrically controlled means for controlling operationof said power operating means, and manually operable electrical switchmeans for controlling energization of said electrically controlledmeans. i

20. In a motor vehicle transmission of the planetary gear type having aplurality of planetary gear operated rotary controlling elements forrespectively controlling the drive to the vehicle in a plurality offorward speeds and in reverse, a plurality of means respectivelyassociated with said rotary elements and adapted for operativeengagement therewith to control said forward and reverse drives, poweroperating means for selectively operating said plurality of elementengaging means, selector operating means for selectively controlling theapplication of said power operating means to said plurality of elementengaging means, a selector element manually shiftable to a plurality ofstations of transmission control respectively corresponding to saidplurality of forward driving speeds and reverse for controlling theoperation of said selector operating means, means for mounting saidselector element for shifting movements in a substantially H-shapedpath, electrically controlled op erating means for controlling theoperation of said power operating means, and manually operableelectrical switch means carried by said selector element for controllingenergization of said electrically controlled operating means.

21. In a motor vehicle transmission of the planetary gear type having aplurality of planetary gear operated rotary controlling elements forrespectively controlling the drive to the vehicle in a plurality offorward speeds and in reverse, a plurality of means respectivelyassociated with said rotary elements and adaptedfor operative engagementtherewith to control said forward and reverse drives, power operatingmeans for selectively operating said plurality of element engagingmeans, selector operating means for selectively controlling theapplication of said power operating means to said plurality of elementengaging means, a selector element manually shiftable to a plurality ofstations of transmission control respectively corresponding to saidplurality of forward driving speeds and reverse for controlling theoperation of said selector operating means, means for mounting saidselector element for shifting movements in a substantially H-shapedpath, valving means controlling communication between a source of fluidunder pressure and said power operating means, electrically energizedmeans for operating said valving means, and electrical switch meanscarried by said selector element for controlling said electricallyenergized means.

22. In a motor vehicle transmission of the planetary gear type having aplurality of planetary gear operated rotary controlling elements forrespectively controlling the drive to the vehicle in a plurality offorward speeds and in reverse, a plurality of means respectivelyassociated with said rotary elements and adapted for operativeengagement therewith to control said forward and reverse drives, poweroperating means for selectively operating said plurality of elementengaging means, selector operating means for selectively controlling theapplication of said power operating means to said plurality of elementengaging means, a selector element manually shiftable to a plurality ofstations of transmission control respectively corresponding to saidplurality of forward driving speeds and reverse for controlling theoperation of said selector operating means, means for mounting saidselector element for shifting movements in a substantially 23. In amotor vehicle transmission of the planetary gear type having a pluralityof planetary gear operated rotary controlling elements for respectivelycontrolling the driveto the vehicle in a plurality of forward speeds andin reverse, a plurality of means respectively asso ciated with saidrotary elements and adapted for operative engagement therewith tocontrol said forward and reverse drives, power operating means forselectively operating said plurality of element engaging means, saidpower operating means including a common selector operating memberadapted for selective operative connection with said plurality ofelement engaging means, a selector element manually shiftable to aplurality of stations of transmission control respectively correspondingto said plurality of forward driving speeds and reverse, means forcontrolling adjustment of said comomn operating member in response toshifting of said selector element, means for mounting said selectorelement for shifting movements in a substantially H-shaped path,electrically controlled means for controlling operation of said poweroperating means, and manually operable electrical switch means carriedby saidselector element for controlling energization of saidelectrically controlled means. Y

24. In a motor vehicle planetary gear type having a plurality ofplanetary gear operated rotary controlling elements for respectivelycontrollingthe drive to the veh cle in a plurality of forward speeds andin reverse, a plurality of means respectively associated with saidrotary elements and adapted for operative engagement therewith tocontrol said forward and reverse drives, fluid power operating meansincluding a common selector operating member adapted for selectiveoperative connection with said plurality of element engaging means,valving means controlling communication between a source of fluid underpressure and said fluid power operating means, a selector elementmanually shiftable to a plurality of stations of transmission controlrespectively corresponding to said plurality of forward driving speedsand reverse for controlling the operation of said power operating means,means for controlling adjustment of said comomn operating member inresponse to shifting of said selector element, means for mounting saidselector element for shifting movements in a substantially H-shapedpath, and manually operable means carried by said selector element forcontrolling operation of said valving means.

25. In a motor vehicle transmission of the planetary gear type having aplurality of plane tary gear operated rotary controlling elements, meansrespectively associated with said rotary elements and adapted foroperative engagement therewith to control the drive through thetransmission, a power operator for selectively operating said elementengaging means, means including a solenoid for controlling operation ofsaid power operator, an adjustable selector element adapted for movementin a substantially H-shaped path to a plurality of predeterminedstations of transmission control, and electrical transmission of the Illswitch controlled means for inducing operation of said solenoid inresponse to movement of said selector element between each of saidstations.

26. In a transmission having a plurality of speed ratio controllingdevices, means for selectively operating said. devices, a fluid pressureactuated device operably connected to said selective operating means, avalve controlling fluid pressure delivery to said fluid pressure device,a solenoid actuator operably connected to said valve, an adjustableselector element adapted for movement in a substantially H-shaped pathto a plurality of predetermined stations of control, means responsive tomovement of said selector element between each of said stations forenergizing said solenoid, and means responsive to movement of saidselector element between said stations for controlling the selectiveoperation of said devices by said selective operating means.

27. In a motor vehicle transmission having a plurality of speed ratiocontrolling devices, power operating means including a fluid pressureoperating motor for selectively operating said controlling devices,selector operating means adapted to selectively establish an operatingconnection between said power operating means and said controllingdevices, fluid pressure valving means controlling said motor,electrically energized means for operating said valving means, amanually operable selector element adapted for manual adjustment in asubstantially H- shaped path to a plurality of stations of transmissiondrive control, means for inducing operation of said electricallyenergized means in response to movement of said selector element betweeneach of said stations, and means for operating said selector operatingmeans in response to movement of said selectorelement between each ofsaid stations.

28. In a motor vehicle transmission of the planetary gear type having aplurality of planetary gear operated rotary controlling elements forrespectively controlling the drive to the vehicle in a plurality offorward speeds and in reverse, a plurality of means respectivelyassociated with said rotary elements and adapted for operativeengagement therewith to control said forward and reverse drives, poweroperating means for selectively operating said plurality of elementengaging means, selector operating means for selectively controlling theapplication of said power operating means to said plurality of elementengaging means, a selector element manually shiftable to a plurality ofstations of transmission control respectively corresponding to saidplurality of forward driving speeds and reverse for controlling theoperation of said power operating means and said selector operatingmeans, means for mounting said selector element for shifting movementsin transversely connecting paths of corresponding directions,electrically controlled means for controlling the operation of one ofsaid operating means, and electric-a1 switch means actuated in responseto shifting movements of said selector element for controllingenergization of said electrically controlled means.

29.111 a motor vehicle transmission of the planetary gear type having aplurality of planetary gear operated rotary controlling elements forrespectively controlling the drive to the vehicle in a plurality offorward speeds and in reverse a plurality of means respectivelyassociated with said rotary elements and adapted for operativeengagement therewith to control said for- Ward and reverse drives, fluidpower operating means for selectively operating said plurality ofelement engaging means, selector operating means for selectivelycontrolling the applica on of said power operating means to saidplurality of element engaging means, a selector element manuallyshiftable to a plurality of stations of transmission controlrespecti'ely corresponding to said plurality of forward driving speedsand reverse for controlling the operation of said pow-- er operatingmeans and said selector operat l means, means for mounting selector mentfor shifting movements in transversely ccnnesting paths of correspondingdirections, valving means controlling communication bet veen a source offluid under pressure and said fluid power operating means, andcontrolling operation of said valving means in response to shiftingmovements of said selector element between said stations.

30.111 a motor vehicle transmission of the planetary gear type having aplurality of planetary gear operated rotary controlling elementsrespectively controlling the drive to the vehicle in a plurality offorward speeds and reverse, a plurality of means respectively associatedwith said rotary elements and adapted for operative engagement therewithto control said forward and reverse drives, power op rating means forselectively operating said plurality of element engaging means, saidpower operating means including a common selector operating memberadapted for selective operative connection with said plurality ofelement engaging means, a selector element manually shiftable to aplurality of stations of transmission control respectively correspondingto said plurality of forward driving speeds and reverse for controllingthe operation of said power operating means, means for controllingadjustment of said common operating member in response to shifting ofsaid selector element, and means for mounting said selector element forshifting movements in transversely connecting paths of correspondingdirections.

31. In a motor vehicle transmission of the planetary gear type having aplurality of planetary gear operated rotary controlling elements forrespectively controlling the drive to the vehicle in a plurality offorward speeds and in roverse, a plurality of means respectivelyassociated with said rotary elements and adapted for operativeengagement therewith to control said forward and reverse drives, poweroperating means for selectively operating said plurality of elementengaging means, said power operating means including a common selectoroperating member adapted for selective operative connection with saidplurality of element engaging means, a selector element manuallyshiftable to a plurality of stations of transmission controlrespectively corresponding to said plurality of forward driving speedsand reverse, means for controlling adiustment of said common operatingmember in response to shifting of said selector element, means formounting said selector element for shifting movements in transverselyconnecting paths of corresponding directions, electrically controlledmeans for controlling operation of said power operating means, andmanually operable electrical switch means for controlling energizationof said electrically controlled means.

32. In a motor vehicle transmission or" the planetary gear type having aplurality of plane-- tary gear operated rotary controlling elements forrespectively controlling the drive to the vehicle in a plurality offorward speeds and in reverse, a plurality of means respectivelyassociated with said rotary elements and adapted for operativeengagement therewith to control said forward and reverse drives, poweroperating means ment engagingmeans, a selector element manuallyshiftable to a plurality of stations of transmission controlrespectively corresponding to said plurality of forward driving speedsand reverse for controlling the operation of said selector operatingmeans, means for mounting said selector element for shifting movementsin transversely connecting paths of corresponding directions,electrically controlled operating means for controlling the operation ofsaid power operating means, and manually operable electrical switchmeans carried by said selector element for controlling energization ofsaid electrically controlled operating means.

33. In a motor vehicle transmission of the planetary gear type having aplurality of planetary gear operated rotary controlling elements forrespectively controlling the drive to the vehicle in a plurality offorward speeds and in reverse, a plurality of means respectivelyassociated with said rotary elements and adapted for operativeengagement therewith to control said forward and reverse drives, poweroperating means for selectively operating said plurality of elementengaging means, selector operating means for selectively controlling theapplication or said power operating means to said plurality of elementengaging means, a selector element manually shiftable to a plurality ofstations of transmission control respectively corresponding to saidplurality of forward driving speeds and reverse for controlling theoperation of said power operating means and said selector operatingmeans, means for mounting said selector element for shifting movementsin a substantially H-shaped path, electrically controlled means forcontrolling operation of one of said operating means, electrical switchmeans actuated in response to shifting movements of said selectorelement for controlling energization of said electrically controlledmeans, and means yieldingly urging said selector element when positionedfor neutral toward one side of said H-shaped path.

34. In a motor vehicle transmission having a plurality of controllingdevices adapted for selective operation for changing the drive throughthe transmission, prime mover means, selectively operable means forselectively controlling operation of said devices by said prime movermeans, an operator adjustable selector element, means for mounting saidselector element for adjustment in a substantially H-shape between aplurality of predetermined stations of transmission control, meansoperable responsive to said station adjustment of said selector elementsubsequently to operation of said prime mover controlling means foreffecting selective operation of said selectively operable means.

35. In a motor vehicle transmission having a plurality of controllingdevices adapted for selective operation for changing the drive throughthe transmission, prime mover means, selectively operable means forselectively controlling operation of said devices by said prime movermeans, an operator adjustable selector element, means for mounting saidselector element for adjustment in a substantially H-shape between aplurality of predetermined stations of transmission control, meansoperable responsive to said station adjustment of said selector elementfor con-k trolling operation of said prime mover, and a yieldingoperating connection between said selector element and said selectivelyoperable means for providing selective operation of said selectivelyoperable means subsequently to operation of said prime mover when saidselector element is adjusted between its stations.

36. Ina motor vehicle transmission having a plurality of controllingdevices adapted for selective operation for changing the drive throughthe transmission, prime mover means, a common selector operator adaptedfor adjustment to positions of selective operation ofv said devices byoperation of said prime mover means, an operator shiftable selectorelement to stations of transmission control, means for mounting saidselector element for shift g movements in transversely connectingpathsof corresponding directions, means operable responsive to shift ofsaid selector element for efiecting selective adjustment of said commonselector operator,

and means operable responsive to shift of said selector element forcontrolling operation of said prime mover means such that operation ofsaid prime mover is maintained when said selector element is positionedat each of said stations and is rendered inoperative during shift ofsaid selector element between said stations,

37. In a motor vehicle transmission having'a plurality of controllingdevices adapted for selective operation for changing the'drive throughthe transmission, prime mover means, a common selector operator adaptedfor adjustment to positions of selective operation of said devices bysaid prime mover means, an operator shiftable selector element, meansfor mounting said selector element for shifting movements intransversely connecting paths of corresponding directions, meansoperable responsive to shift of said selector element for effectingselective adjustment of said common selector operator; switch meanscarried by said selector element and adapted for operation by saidoperator incidental to shifting said selector element, and meansoperable responsive to operation of said switch means for controllingoperation of said prime mover means.

38. In a motor vehicle transmission having a plurality of controllingdevices adapted for selective operation for changing the drive throughthe transmission, prime mover means, a common selector operator adaptedfor adjustment to positions of selective operation of said devices bysaid prime mover means, an operator shiftable selector element, meansoperable responsive to shift of said selector element for effectingselective adjustment of said common selector operator, switch meanscarried by said selector element and adapted for operation by saidselector element and adapted for operation by said operator incidentalto shifting said selector element, and means operable responsive tooperation of said switch means for controlling opera tion of said primemover means.

39. In a motor vehicle speed ratio changing transmission, a plurality ofspeed ratio controlling devices, power operating means for operatingsaid devices, selector means for selectively operably connecting saidpower operating means with said devices, a manually shiftable selectorelement, means operably connecting said selector element with saidselector means for manipulating the latter by said selector element, andmeans for mounting said selector element for shifting movements in asubstantially H-shaped path to a plurality of stations of transmissioncontrol, said selector element having substantially greater shiftingmovement along one side of said H-shaped path than along the other sidethereof, said connecting means including an oscillatory operating membermoved to and fro in response to shifting movements of said selectorelement between said stations, said operating member being selectivelypositioned in its opposite limits of movement in response to shiftingmovements of said selector element selectively to its limits of movementalong said path side of greater shifting movement.

40. In a motor vehicle power transmission, a rotatable transmissiondrive controlling member, a device adapted to frictionally engage saidrotatable drive controlling member, a pressure fluid operable motoradapted to operate said device in frictional engagement with saidrotatable drive controlling member, means for supplying liquid fluidunder pressure for delivery to said motor, valving means controlling thedelivery of said pressure fluid to said motor for controlling engagementand release of said irictionally en gageable device, a solenoid operablyconnected to said valving means and adapted when energized to operatesaid valving means to eiiect release of said frictionally engageabledevice, a selector ele ment manually shiftable to a plurality of sta--tions of transmission drive control, means for mounting said selectorelement for shifting movements in a substantially H-shaped path,additional transmission drive control means adapted for selectivemanipulation in response to shift of said selector element, and meansoperating in response to shift of said selector element when saidfriction device is engaged to effect energization of said solenoid andmanipulation of one of said additional transmission drive control means.

41. In a motor vehicle power transmission, a rotatable transmissiondrive controlling member, a device adapted to frictionally engage saidrotatable drive controlling member, a pressure fluid operable motoradapted to operate said device in frictional engagement with saidrotatable drive controlling member, means for supplying liquid fluidunder pressure for delivery to said motor, valving means controlling thedelivery of said pressure fluid to said motor for controlling engagementand release of said frictionally engageable device, a solenoid operablyconnected to said valving means and adapted when energized to operatesaid valving means to effect release of said frictionally engageabledevice, a selector element manually shiftable to a plurality of stationsof transmission drive control, means for mounting said selector elementfor shifting movements in a substantially H-shaped path, additionaltransmission drive control means adapted for selective manipulation inresponse to shift of said selector element, switch means controllingenergization of said solenoid and adapted for operation in response toshift of said selector element between each of, said drive controlstations, and means operating in response to shift of said selectorelement between each of said drive control stations for operating saidswitch means and to thereafter effect manipulation of one of saidadditional drive control means.

42. In a motor vehicle transmission; a driver operated selector element;means for mounting said selector element for shifting movements in anapproximately H-shaped path between predetermined stations oftransmission control; and means operating in response to shift of saidselector element for manipulating the transmission to change the vehicledrive, said operating means including a liquid fluid-delivery controlvalve, a solenoid for operating said valve, an electrical circuit forsaid solenoid, switch means for controlling said circuit, and means formounting said switch means for operation in response to shift of saidselector element for closing said circuit during shift movements of saidselector element and for opening said circuit when said selector elementis disposed at said stations.

43. In a power transmission, a plurality of speed ratio controllingdevices, a prime mover, a selector operating member operably connectedto said prime mover for selectively operating said devices, meansincluding a solenoid for controlling operation of said prime mover, anadjustable selector element adapted for movement in a substantiallyH-shaped path to a plurality of predetermined stations of transmissioncontrol, electrical switch controlled means for inducing operation ofsaid solenoid in response to movement of said element between each ofsaid stations, and motion transmitting means extending between saidselector element and said selector operating member, said motiontransmitting means being operable in response to movement of saidselector element between said stations for selectively operablyconnecting said selector operating means with said controlling devices.

TENO IAVELLI.

